As Kenny stated do a search and you'll find a bunch of reading.  Call some places and get prices.  Ask about weight, how wide jaws open, are the pivot points fitted with bolts or pins with zert fittings.  I did a post a year or so back 'grappling with with questions on grapples' or some such title.  There was some good feedback. There are alot of other good posts out there.  I too settled on a Markham light duty with extra spacers.  I use it in Floyd area which maybe terrain like yours.   It does a great job for brush, rocks and logs.  Enjoy your search.